Cognex MVS-8000 Series, Hardware Manual

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2 MVS-8600 Hardware
MVS-8600 Hardware Manual 73
Circuit Logic Diagrams
This section provides circuit diagrams and descriptions illustrating how to wire parallel
I/O devices to the MVS-8600.
Programmable Line Input Circuitry
Figure 25 illustrates the connection of input devices to the opto-isolated input circuitry
for the programmable lines OPTO_IN_0 through OPTO_IN_7. These lines are present on
the P4 and P6 jacks of the MVS-8600, and are brought out to the host PC’s back panel
with cable 300-0240.
Figure 25. Opto-isolated input circuitry for programmable lines
Note To take maximum advantage of the signal isolation provided by the
opto-isolation circuitry, the programmable input lines should be
powered by an external power supply, not by the MVS-8600.
The eight opto-isolated input lines are grouped into four pairs, with each pair sharing a
common anode (+) pin, but with individual cathode (–) pins. Table 25 shows the
groupings and pin numbers of the programmable input line pairs.
Optocoupler
2K2
OPTO_IN_ n + (Anode, 5-24 V)
OPTO_IN_ n – (Cathode)
I
F
P4
Pin
P4’s 300-0240 P6
Pin
P6’s 300-0240
Signal Name Pin on DB-25 Pin on DB-25 Notes
OPTO 5 3 These lines
not available
with I/O
option 3
OPTO_IN_0– 7 4
OPTO_IN_1– 9 5
OPTO 21 11
OPTO_IN_2– 23 12
Table 25. Grouping of opto-isolated input lines